1.

In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood

Answer» Ask from birds teacher
Body temperature maintain kerne ke liye aur each cells ko o 2 chaahiye hamhe o2 ki jayada jaroorat padti hai ager hamhe baghnaan ne 4 chambemred heart diya hai to hoga hi ager 2 chambered doya hota to nahi tha necessary


Discussion

No Comment Found